盾构施工对沿线房屋影响的分析方法  

The analytical methods of influence of shield construction on adjacent houses

作　　者：陈大川[1] 王鼎伟 刘翔[1] 胡建平[1] 郭杰标 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]湖南大兴加固改造工程有限公司,湖南长沙410082

出　　处：《四川建筑科学研究》2017年第2期136-141,共6页Sichuan Building Science

基　　金：国家自然科学基金(50778067)

摘　　要：城市轨道交通中的隧道不可避免地将会从现存建筑物下方的地层中穿越,那么随之而来的必将是对建筑物的地基和基础产生影响,从而使建筑物及其周边环境发生改变,甚至使之产生风险。目前,盾构施工沿线的房屋主要以框架结构和砌体结构为主,那么研究盾构施工对这两种结构形式房屋的影响是至关重要的。文章依托长株潭城际铁路相关实际工程案例,利用砌体结构的风险分析引入新的评估方法——综合指数矩阵评价体系,在运用该体系分析某实际框架结构后,结合有限元软件ANSYS对之建模进行了数值分析,成功对上述风险评估方法进行了验证,从而为盾构施工对沿线房屋影响的分析方法增加了多元化的选择。Tunnel in urban rail transit will inevitably traverse the lower strata of the existing buildings, then will be followed by impact on the foundation and the foundation of buildings, so that the building and the surrounding environment will be changed, exposing the risk. At present,the houses along the shield construction are mainly composed of frame structure and masonry structure,so the research of the influences to these two kinds of structure forms by shield construction is crucial. The article depends on the practical engineering cases of the CHANG-ZHU-TAN intercity railway projects,introducing a new evaluation method,the evaluation system of comprehensive index matrix by using the risk analysis on the masonry structure. After analyzing a practical framework structure by using this evaluation system,the model which is developed in the finite element software ANSYS is combined to make the numerical analysis. It is successful to verify the risk evaluation system,and thus increase the choice when analyzing the influence of shield construction on adjacent houses.

关 键 词：盾构施工 风险分析 数值分析 

分 类 号：U455[建筑科学—桥梁与隧道工程]